Gree GMV-VQ680WM/C-X Service Manual page 340

Gree
circuit of the unit are normal, only the compressor needs to be replaced.
The procedure of checking oil quality is described as follows:
①
After removing a compressor, shake the compressor on a solid ground in the sway
angle of 30 to 45 degrees to ensure that the pollutants deposited on the bottom of the
compressor can be poured out.
②
Place the compressor at a position above the level of the ground, pour oil from the
compressor exhaust port, and use a beverage bottle or other transparent container (with a
volume of over 150 ml) to store oil.
Note that the angle between the axial position of the compressor and the horizontal plane
should not exceed 20 degrees to prevent the compressor from falling and injuring people.
③
Place the collected compressor oil in a bright place to check if it contains impurities
and discolors, and smell the compressor oil. Normal lubricant has no obvious pungent odor.
GMV6 HR DC Inverter VRF Units Service Manual
Remove the compressor
and shake it on solid
ground anticlockwise
30-45°
No more than 20°
between the
compressor and
ground
Place a transparent container with
a capacity of above 150ml beneath
the discharge pipe when draining
the lubricant of the compressor to
check the oil quality
338